52555052778 has 8 divisors (see below), whose sum is σ = 105110105568. Its totient is φ = 17518350924.

The previous prime is 52555052761. The next prime is 52555052783. The reversal of 52555052778 is 87725055525.

It is a sphenic number, since it is the product of 3 distinct primes.

52555052778 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52555052778.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379587726 + ... + 4379587737.

It is an arithmetic number, because the mean of its divisors is an integer number (13138763196).

Almost surely, 2^52555052778 is an apocalyptic number.

52555052778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52555052778 is a wasteful number, since it uses less digits than its factorization.

52555052778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8759175468.

The product of its (nonzero) digits is 4900000, while the sum is 51.

The spelling of 52555052778 in words is "fifty-two billion, five hundred fifty-five million, fifty-two thousand, seven hundred seventy-eight".